منابع مشابه
the numerical study of extinction limits and structure of h2/o2 counterflow diffusion flame with ar and he dilution
laminar counterflow diffusion flames provide useful information about basic properties of non-premixed combustion. a lot of studies have been performed on h2/o2 counterflow. most of previous studies include undiluted or diluted systems of hydrogen (with co2 or n2) against an air flow under a variety of conditions such as strain rates, inlet temperature and pressure. the main purpose of this res...
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The purpose of this study is to investigate the effect of radiation heat transfer on temperature distribution and heat flux to the walls of a diesel engine. A diffusion flame is modeled in a simple cylindrical geometry and boundary conditions are defined. A specific solver which can model the turbulent diffusion flame by considering radiation in participating media is used to solve the problem....
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A non-equilibrium plasma assisted combustion system was developed by integrating a counterflow burner with a nano-second pulser to study the effects of atomic oxygen production on the extinction limits of methane diffusion flames at low pressure conditions. The production of atomic oxygen from the repetitive nano-second plasma discharge was measured by using two-photon absorption laser-induced ...
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The interaction of turbulent nonpremixed flames with fine water spray is studied using direct numerical simulations (DNS) with detailed chemistry. The study is of practical importance in fire safety devices that operate in the mist regime, as well as an inexpensive temperature control mechanism for gas turbines. The implemented computational methods for the Lagrangian particle-in-cell spray dro...
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Extinction limits and flame bifurcation of lean premixed dimethyl ether-air flames are investigated numerically using the counterflow flame with a reduced chemistry. Emphasis is paid to the combined effect of radiation and flame stretch on the extinction and flammability limits. A method based on the reaction front is presented to predict the Markstein length. The predicted positive Markstein l...
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ژورنال
عنوان ژورنال: Journal of Thermal Science and Technology
سال: 2011
ISSN: 1880-5566
DOI: 10.1299/jtst.6.323